projects / current work

Projects.

Products, data-heavy systems, and web work that still makes sense after launch.

A mix of my own products and selected client sites. Different jobs, same bias: clear structure, stable implementation, and fewer fragile pretty things.

Products

Things I am building.

Product work where I shape the logic, data model, decision flow, and long-term system direction directly.

passary.com
Passary homepage preview
Passary logo

Offline password manager

Passary

A local-first password manager built around data ownership, isolation, and zero-knowledge operation.

Zero-knowledge password manager
No accounts / no tracking
Argon2id + AES-256-GCM
Built for privacy
zero-knowledgelocal-firstsecurityprivacyweb app

The starting point here was simple: passwords should not live in a cloud vault by default. They should stay with the user, locally, encrypted. The security model is built around Argon2id + AES-256-GCM, with a zero-knowledge approach and as small an attack surface as possible. Right now the focus is continued product work: browser extension, mobile direction, and later self-hosted or sharing use cases.

tipsignal.com
TipSignal homepage preview
TipSignal logo

Football predictions & analytics

TipSignal

A free football prediction site with match picks, analytics, EV-based high-odds selections, a results archive, and a bet simulator.

50+ leagues
Updated daily
Value bets / EV
No account / no subscription
footballpredictionsanalyticsEVad-supported

The goal here was not to throw up tips and leave it there. It needed real data behind it, prediction logic, and results you can actually review. Managing daily ingestion for 50+ leagues is also a good testing ground for concurrency, schema pressure, and query paths that need to stay predictable. The focus is daily predictions, the analytics layer, value and EV thinking, and a transparent picture of how the picks perform over time. The current direction includes today's predictions, high-odds picks, results archive, analytics, news, and the simulator.

github.com
ResoSwitch menu bar preview
ResoSwitch icon

macOS menu bar utility

ResoSwitch

A native macOS menu bar app for switching display resolutions, HiDPI modes, and external monitor layouts without opening System Settings.

Native Objective-C/AppKit app
Per-display resolution favorites
Cmd+1 through Cmd+9 shortcuts
PKG and DMG release artifacts
macOSAppKitCoreGraphicsHiDPImenu bar

The problem is small but annoying: macOS can change display modes, but the control is buried when you need it often. ResoSwitch puts the useful choices in the top-right menu bar, with per-display favorites, Cmd+number shortcuts, and a safety prompt for unusual modes. The current public release ships as a PKG or DMG for macOS 13 and newer. It is still unsigned and not notarized, so installation is not yet as smooth as a polished Mac app should be.

Client work

Sites with a job to do.

From time to time I also take on web design and web development projects, usually for service sites where trust, search, and direct inquiry matter.

djcanis.ch
DJ Canis homepage preview
DJ Canis logo

DJ & Musician website

DJ Canis

Business logic & service positioning

A conversion-focused site for a Swiss wedding and event DJ, built to present services clearly, build trust fast, and drive booking inquiries.

Wedding / event DJ site
Built for direct inquiries
Trust and review-driven
Swiss local service positioning
szabogabriellaeszter.hu
Szabó Gabriella Eszter homepage preview
Szabó Gabriella Eszter site mark

Teaching & Musician website

Szabó Gabriella Eszter

Business logic & service positioning

A personal teaching and musician site built around trust, biography, lesson positioning, and direct local contact.

Piano teacher / musician site
Biography and trust-led structure
Lesson booking focus
Local service positioning